Home / 1,292,148.80-1,938,890.28-618,093.60

Finding the Fourth Proportional to 1,292,148.80, 1,938,890.28 and 618,093.60

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Solution

The fourth proportional to 1,292,148.80, 1,938,890.28 and 618,093.60 is: 927,459.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,148.80 : 1,938,890.28 = 618,093.60 : x
  2. Step 2: Convert to fraction form
    1,292,148.80/1,938,890.28 = 618,093.60/x
  3. Step 3: Cross multiply
    1,292,148.80x = 1,938,890.28 × 618,093.60
  4. Step 4: Simplify right side
    1,292,148.80x = 1,198,415,673,170.21
  5. Step 5: Solve for x
    x = 1,198,415,673,170.21/1,292,148.80
  6. Step 6: Final answer
    x = 927,459.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.